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Making the Oxford Hip and Knee Scores meaningful at the patient level through normative scoring and registry data
OBJECTIVES: The Oxford Hip and Knee Scores (OHS, OKS) have been demonstrated to vary according to age and gender, making it difficult to compare results in cohorts with different demographics. The aim of this paper was to calculate reference values for different patient groups and highlight the conc...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
British Editorial Society of Bone and Joint Surgery
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4561372/ https://www.ncbi.nlm.nih.gov/pubmed/26311163 http://dx.doi.org/10.1302/2046-3758.48.2000524 |
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author | Hamilton, D. F. Giesinger, J. M. Patton, J. T. MacDonald, D. J. Simpson, A. H. R. W. Howie, C. R. Giesinger, K. |
author_facet | Hamilton, D. F. Giesinger, J. M. Patton, J. T. MacDonald, D. J. Simpson, A. H. R. W. Howie, C. R. Giesinger, K. |
author_sort | Hamilton, D. F. |
collection | PubMed |
description | OBJECTIVES: The Oxford Hip and Knee Scores (OHS, OKS) have been demonstrated to vary according to age and gender, making it difficult to compare results in cohorts with different demographics. The aim of this paper was to calculate reference values for different patient groups and highlight the concept of normative reference data to contextualise an individual’s outcome. METHODS: We accessed prospectively collected OHS and OKS data for patients undergoing lower limb joint arthroplasty at a single orthopaedic teaching hospital during a five-year period. T-scores were calculated based on the OHS and OKS distributions. RESULTS: Data were obtained from 3203 total hip arthroplasty (THA) patients and 2742 total knee arthroplasty (TKA) patients. The mean age of the patient was 68.0 years (sd 11.3, 58.4% women) in the THA group and in 70.2 (sd 9.4; 57.5% women) in the TKA group. T-scores were calculated for age and gender subgroups by operation. Different T-score thresholds are seen at different time points pre and post surgery. Values are further stratified by operation (THA/TKA) age and gender. CONCLUSIONS: Normative data interpretation requires a fundamental shift in the thinking as to the use of the Oxford Scores. Instead of reporting actual score points, the patient is rated by their relative position within the group of all patients undergoing the same procedure. It is proposed that this form of transformation is beneficial (a) for more appropriately comparing different patient cohorts and (b) informing an individual patient how they are progressing compared with others of their age and gender. Cite this article: Bone Joint Res 2015;4:137–144 |
format | Online Article Text |
id | pubmed-4561372 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | British Editorial Society of Bone and Joint Surgery |
record_format | MEDLINE/PubMed |
spelling | pubmed-45613722015-09-28 Making the Oxford Hip and Knee Scores meaningful at the patient level through normative scoring and registry data Hamilton, D. F. Giesinger, J. M. Patton, J. T. MacDonald, D. J. Simpson, A. H. R. W. Howie, C. R. Giesinger, K. Bone Joint Res Arthroplasty OBJECTIVES: The Oxford Hip and Knee Scores (OHS, OKS) have been demonstrated to vary according to age and gender, making it difficult to compare results in cohorts with different demographics. The aim of this paper was to calculate reference values for different patient groups and highlight the concept of normative reference data to contextualise an individual’s outcome. METHODS: We accessed prospectively collected OHS and OKS data for patients undergoing lower limb joint arthroplasty at a single orthopaedic teaching hospital during a five-year period. T-scores were calculated based on the OHS and OKS distributions. RESULTS: Data were obtained from 3203 total hip arthroplasty (THA) patients and 2742 total knee arthroplasty (TKA) patients. The mean age of the patient was 68.0 years (sd 11.3, 58.4% women) in the THA group and in 70.2 (sd 9.4; 57.5% women) in the TKA group. T-scores were calculated for age and gender subgroups by operation. Different T-score thresholds are seen at different time points pre and post surgery. Values are further stratified by operation (THA/TKA) age and gender. CONCLUSIONS: Normative data interpretation requires a fundamental shift in the thinking as to the use of the Oxford Scores. Instead of reporting actual score points, the patient is rated by their relative position within the group of all patients undergoing the same procedure. It is proposed that this form of transformation is beneficial (a) for more appropriately comparing different patient cohorts and (b) informing an individual patient how they are progressing compared with others of their age and gender. Cite this article: Bone Joint Res 2015;4:137–144 British Editorial Society of Bone and Joint Surgery 2015-08-01 /pmc/articles/PMC4561372/ /pubmed/26311163 http://dx.doi.org/10.1302/2046-3758.48.2000524 Text en ©2015 Hamilton ©2015 Hamilton. This is an open-access article distributed under the terms of the Creative Commons Attributions licence, which permits unrestricted use, distribution, and reproduction in any medium, but not for commercial gain, provided the original author and source are credited. |
spellingShingle | Arthroplasty Hamilton, D. F. Giesinger, J. M. Patton, J. T. MacDonald, D. J. Simpson, A. H. R. W. Howie, C. R. Giesinger, K. Making the Oxford Hip and Knee Scores meaningful at the patient level through normative scoring and registry data |
title | Making the Oxford Hip and Knee Scores meaningful at the patient level through normative scoring and registry
data |
title_full | Making the Oxford Hip and Knee Scores meaningful at the patient level through normative scoring and registry
data |
title_fullStr | Making the Oxford Hip and Knee Scores meaningful at the patient level through normative scoring and registry
data |
title_full_unstemmed | Making the Oxford Hip and Knee Scores meaningful at the patient level through normative scoring and registry
data |
title_short | Making the Oxford Hip and Knee Scores meaningful at the patient level through normative scoring and registry
data |
title_sort | making the oxford hip and knee scores meaningful at the patient level through normative scoring and registry
data |
topic | Arthroplasty |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4561372/ https://www.ncbi.nlm.nih.gov/pubmed/26311163 http://dx.doi.org/10.1302/2046-3758.48.2000524 |
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